Title (en)

HONEYCOMB FILTER

Title (de)

WABENSTRUKTURFILTER

Title (fr)

FILTRE EN NID D'ABEILLES

Publication

EP 2554236 A4 20150812 (EN)

Application

EP 11765672 A 20110330

Priority

• JP 2010081898 A 20100331
• JP 2011058082 W 20110330

Abstract (en)

[origin: EP2554236A1] A honeycomb filter 20 includes a plurality of porous partition portions 22 each forming a cell 23, the cell 23 being open at one end and closed at the other end and serving as a flow path of an exhaust gas, and a trapping layer 24 for trapping and removing solid components contained in the exhaust gas, the trapping layer 24 being formed on each of the partition portions 22. In a honeycomb segment 21, the trapping layers 24 are formed such that the ratio A/B of the thickness A ( µ m) of the trapping layer 24 formed on each of outermost partition portions 22a to the thickness B ( µ m) of the trapping layer 24 formed on each of partition portions 22b in an inner region is 60% or less.

IPC 8 full level

B01D 39/20 (2006.01); B01D 46/00 (2006.01); B01D 46/24 (2006.01); B01D 53/94 (2006.01); B01J 23/63 (2006.01); B01J 23/656 (2006.01); B01J 35/02 (2006.01); B01J 35/04 (2006.01); B01J 37/02 (2006.01); C04B 38/00 (2006.01); F01N 3/02 (2006.01); F01N 3/022 (2006.01); C04B 111/00 (2006.01)

CPC (source: EP US)

B01D 46/2474 (2013.01 - EP US); B01D 46/2478 (2021.08 - EP US); B01D 46/2482 (2021.08 - EP US); B01D 46/2498 (2021.08 - EP); B01J 23/6562 (2013.01 - EP); B01J 35/40 (2024.01 - EP); B01J 35/56 (2024.01 - EP); B01J 37/0215 (2013.01 - EP); C04B 38/0009 (2013.01 - EP); F01N 3/0222 (2013.01 - EP); B01D 53/9409 (2013.01 - EP); B01D 53/944 (2013.01 - EP); B01D 53/9445 (2013.01 - EP); B01D 2255/1021 (2013.01 - EP); B01D 2255/407 (2013.01 - EP); B01D 2255/9155 (2013.01 - EP); B01D 2279/30 (2013.01 - EP); B01J 23/63 (2013.01 - EP); B01J 2523/00 (2013.01 - EP); C04B 2111/00793 (2013.01 - EP); C04B 2111/0081 (2013.01 - EP); Y02T 10/12 (2013.01 - EP)

C-Set (source: EP)

1. B01J 2523/00 + B01J 2523/36 + B01J 2523/3712 + B01J 2523/3718 + B01J 2523/48 + B01J 2523/72
2. C04B 38/0009 + C04B 35/10 + C04B 35/14 + C04B 35/185 + C04B 35/195 + C04B 35/447 + C04B 35/46 + C04B 35/478 + C04B 35/48 + C04B 35/565 + C04B 35/584 + C04B 35/597 + C04B 38/0016 + C04B 41/48

Citation (search report)

[E] EP 2415509 A1 20120208 - NGK INSULATORS LTD [JP]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2554236 A1 20130206; EP 2554236 A4 20150812; EP 2554236 B1 20200708; JP 5714568 B2 20150507; JP WO2011125772 A1 20130708; WO 2011125772 A1 20111013

DOCDB simple family (application)

EP 11765672 A 20110330; JP 2011058082 W 20110330; JP 2012509534 A 20110330